author = {Marta Gomez-Barrero and Javier Galbally and Réjean Plamondon and Julian Fierrez and Javier Ortega-Garcia},
booktitle = {Proc. IEEE/IAPR Int. Conf. on Biometrics, ICB},
month = {June},
title = {Variations of Handwritten Signatures with Time: A Sigma-Lognormal Analysis},
year = {2013},
doi = {http://dx.doi.org/10.1109/ICB.2013.6612974},